package com.heima.kafka.controller;


import com.alibaba.fastjson.JSON;
import com.heima.kafka.controller.com.heima.kafka.pojo.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.kafka.core.KafkaTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;


/**
 * 消息生产者
 */
@RestController
public class HelloController {

    @Autowired
    private KafkaTemplate<String, String> kafkaTemplate;

    @GetMapping("/hello")
    public String hello() {
        // 第一个参数; topice
        User user = new User();
        user.setUsername("zhangsan");
        user.setAge(23);
        kafkaTemplate.send("hello-itcast", JSON.toJSONString(user));

        //第二个参数消息内容
        return "ok";
    }
}
